Search for dissertations about: "radionuclide technique"

Showing result 11 - 15 of 21 swedish dissertations containing the words radionuclide technique.

  2. 11. Sorption and weathering properties of naturally occurring chlorites

    Author : Åsa Gustafsson; KTH; []
    Keywords : chlorite; nickel; sorption; surface complexation; dissolution rate.;

    Abstract : Chlorite is a ferrous silicate mineral occurring as afracture filling mineral in the Swedish granite bedrock thatsurrounds the area of the candidate Swedish geologicalrepositories for nuclear waste. To investigate the importance of chlorites as a naturalbarrier for radionuclide migration sorption of Ni(II) onto anatural chlorite was chosen as the studied system. READ MORE

  4. 12. Functional and morphological MR studies in congenital cardiovascular malformations

    Author : Catarina Holmqvist; Lund Diagnostisk radiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; medicinsk instrumentering; tomografi; radiologi; Klinisk fysiologi; Contrast-enhanced MR angiography.; Coarctation; Intra-cardiac shunts; Conduits; Tetralogy of Fallot; Function; Flow; MR velocity mapping; Infants; Children; Magnetic Resonance Imaging; Angiocardiography; Heart; Congenital heart defects; medical instrumentation; tomography; radiology; Clinical physics;

    Abstract : The aim of this study was to evaluate new MR techniques permitting qualitative and quantitative analysis of cardiac function and measurement of velocity and flow, and later on contrast-enhanced MR angiography, techniques largely unexplored in children with CHD. Infants with tetralogy of Fallot and pulmonary atresia with ventricular septal defect were examined pre-operatively. READ MORE

  5. 13. Chlorite: Geochemical properties, Dissolution kinetcis and Ni(II) sorption

    Author : Åsa Zazzi; Zoltan Szabo; Susanna Wold; Peter Vilks; KTH; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; chlorite; dissolution kinetics; Ni II sorption; surface complexation; Chemistry; Kemi;

    Abstract : In Sweden, among other countries, a deep multi-barrier geological repository, KBS-3, is planned for the burial of nuclear waste. One of the barriers is identified as the grantic bedrock itself and in this environment chlorite is present at surfaces in fracture zones. READ MORE

  6. 14. Development of radiometal-based labelling techniques and tracers for non-invasive molecular imaging

    Author : Emma Jussing; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Metallic radionuclides, radiometals, have an important role in nuclear medicine. Their straightforward coordination radiochemistry allows for a large variety of applications. READ MORE

  7. 15. Method development for [11C]carbon monoxide radiochemistry

    Author : Mélodie Ferrat; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Positron emission tomography (PET) is a non-invasive molecular imaging technique that has found extensive utility in biomedical research and in drug development. A fundamental pre-requisite for PET is the tracer, which is a biologically relevant molecule, labeled with a short-lived radionuclide. READ MORE